Backup picks are in case your first pick withdraws before the match begins. Nishikori was scheduled for yesterday but didn't get to play, therefore he was postponed. He's still your day 3 pick, the result is just pending.

Backup picks are in case your first pick withdraws before the match begins. Nishikori was scheduled for yesterday but didn't get to play, therefore he was postponed. He's still your day 3 pick, the result is just pending.